3EJ7
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BrandSylvania
ClassPentode
BaseMiniature Button 9-Pin
Filament3.4V @ 600mA
Construction
Primary TypeSharp-cutoff pentode
EnvelopeT-6 1/2
SectionsSingle
Filament / Heater
Heater NotesSeries operation
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation2.5 W
Grid 2 Voltage250 V
Cathode Current25 mA
Audio Performance
Key Features
- High transconductance
- Sharp-cutoff
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A1 Amplifier | 200V | 15000 | 350000 | 60 | 10mA |
Application Notes
Designed for service as IF amplifiers in series string operation.
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